Physics The unit of noise pollution (level) is : Decimal Ppm None of these Decibel Decimal Ppm None of these Decibel ANSWER DOWNLOAD EXAMIANS APP
Physics The method of magnetisation is: Hammering a magnet Heating a magnet Passing direct current through it Passing alternating current through it Hammering a magnet Heating a magnet Passing direct current through it Passing alternating current through it ANSWER DOWNLOAD EXAMIANS APP
Physics To resolve an object in an electron microscope, Both A & B The wavelength of the electrons must be close to the diameter of the object None of these The wavelength of the electrons must be greater than the diameter of the object. Both A & B The wavelength of the electrons must be close to the diameter of the object None of these The wavelength of the electrons must be greater than the diameter of the object. ANSWER DOWNLOAD EXAMIANS APP
Physics The lift of an aeroplane is caused by Law of gravitation Pascel's law Bernouli's theorem Theorem of continuity Law of gravitation Pascel's law Bernouli's theorem Theorem of continuity ANSWER DOWNLOAD EXAMIANS APP
Physics Red is used as an emergency or danger signal as It has very high energy It is scattered It is a striking colour Its wavelength is the longest It has very high energy It is scattered It is a striking colour Its wavelength is the longest ANSWER DOWNLOAD EXAMIANS APP
Physics Eclipses occur due to which optical phenomena? Refraction Reflection Diffraction Rectilinear propagation Refraction Reflection Diffraction Rectilinear propagation ANSWER DOWNLOAD EXAMIANS APP